Sky Blue (2004)

The year is 2140, and humanity's reckless exploitation of the environment has all but ended civilization on earth. Only a small number of elite possessing power and technology thrive under the dark skies inside the palatial city called Delos on a South Pacific island. Delos is fueled by carbon pollution and propagates environmental wretchedness. The Diggers--refugees forced to live in the wasteland surrounding Delos--come to the city seeking asylum, but the elite viciously keep them out. Jay is a female trooper who guards Delos against the Diggers. Her loyalty is tested when she learns that her childhood sweetheart, Shua, is leading a Digger rebellion to end the reign of pollution. Jay must choose between duty, love, and the hope of blue skies.